From: Stephen Berman <Stephen.Berman@gmx.net>
To: emacs-devel@gnu.org
Subject: Re: Mouse highlighting and fonts
Date: Sun, 25 May 2008 01:02:04 +0200 [thread overview]
Message-ID: <877idje26r.fsf@escher.local.home> (raw)
In-Reply-To: 87tzgog5kd.fsf@stupidchicken.com
On Fri, 23 May 2008 15:53:54 -0400 Chong Yidong <cyd@stupidchicken.com> wrote:
> Chong Yidong <cyd@stupidchicken.com> writes:
>
>> With the current CVS code, the mouse highlight preserves the size of the
>> underlying face, which avoids the meta-stability problem I mentioned a
>> few weeks ago. However, mouse highlighting of the glyph background
>> still doesn't work right when the underlying font size varies across the
>> highlighted region.
>
> BTW, another mouse-highlighting bug I reported earlier is still present.
> Under certain circumstances, the area to the left and/or right of the
> physical cursor doesn't acquire the proper mouse-face.
This also sound like the bug I reported in
<http://permalink.gmane.org/gmane.emacs.devel/88763>.
> This appears to be a long-standing bug, but one that didn't show up
> until the new font code. That's because it arises as follows: when the
> cursor glyph has a nonzero lbearing or rbearing (i.e., it overlaps with
> its neighbors), the neighboring glyphs are redrawn, and this can
> overwrite the mouse-face highlight. See xdisp.c:19934. This didn't
> show up because previously, overlapping glyphs were generally not
> encountered.
>
> I'll try to fix this once I get the time, unless someone else fixes it
> first.
I wish I knew how to fix it; in lieu of that, I look forward to testing
your patch!
Steve Berman
next prev parent reply other threads:[~2008-05-24 23:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-23 15:09 Mouse highlighting and fonts Chong Yidong
2008-05-23 19:53 ` Chong Yidong
2008-05-24 23:02 ` Stephen Berman [this message]
2008-05-25 2:01 ` Chong Yidong
2008-05-25 4:46 ` YAMAMOTO Mitsuharu
2008-05-25 8:21 ` Gerd Möllmann
2008-05-27 8:58 ` Johan Bockgård
2008-05-27 3:26 ` Chong Yidong
2008-05-27 13:24 ` Stephen Berman
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